Corrected compiler filtering for TAU makefiles (#15342)
Corrected compiler filtering for TAU makefiles (#15342)

* Implemented working file filtering to replace spack compiler wrapper with real compiler.

* Using string=True instead of re.escape. Using self.prefix.lib instead of appending /lib.

Co-authored-by: Wyatt Spear <c189228e0bbe465ca80960bd2f166d7c25853086@cs.uoregon.edu>
iulian787/spack,iulian787/spack,LLNL/spack,LLNL/spack,iulian787/spack,iulian787/spack,LLNL/spack,LLNL/spack,LLNL/spack,iulian787/spack